Though air pollution is by far the most menacing for humans, water quality has similarly been getting better.
虽然空气污染是到目前为止对人类的最大威胁，但是水质量已经类似地变得更好。
The daily experience is that the air and water quality is bad, in some places getting marginally better or staying the same, in some cases getting worse.
与日常生活息息相关的大气质量和水质都很糟糕，不同的区域要么有些许细微的好转，要么维持原状，有的地方甚至每况愈下。
Displacement ventilation is a completely new ventilation way, through which aims such as gaining higher air quality, economizing energy and getting better ventilation efficiency are realized.
置换通风是一种全新的通风方式，可获得较高的空气品质和节能效果以及具有较高的通风效率。
"When I really miss Beijing I will open a can and sniff it, " Mr Zhang, 26, said. "I love this city and the air quality is getting better. "
26岁的张先生说：“在我特别想念北京的时候，我就会打开一罐闻闻。我爱这座城市，它的空气质量正在改善。”
"When I really miss Beijing I will open a can and sniff it, " Mr Zhang, 26, said. "I love this city and the air quality is getting better. "
26岁的张先生说：“在我特别想念北京的时候，我就会打开一罐闻闻。我爱这座城市，它的空气质量正在改善。”
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